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LP5815 3-Channel I

2

C Interface RGB LED Driver

with Instant Blinking and Auto Animation Control

1 Features

•Operating voltage range

–V

CC

range: 2.5V to 5.5V

–Logic pins compatible with 1.8V, 3.3V, and 5V

–Output voltage up to 5.5V

•3-constant current sinks with high precision

–0.1mA to 51mA per channel

–Device-to-device error: ±8% (max.)

–Channel-to-channel error: ±3% (max.)

–Ultra-low headroom voltage: 135mV (max.) at

25.5mA; 275mV (max.) at 51mA

•Ultra-low power consumption

–Shutdown: I

SD

= 0.1μA (typ.)

–Standby: I

STB

= 22μA (typ.)

–Active:

•I

NOR

= 0.15mA(typ.), disable output channel

•I

NOR

= 0.23mA(typ.), LED current = 25.5mA

•Analog dimming (current gain control)

–Global 1-bit Maximum Current (MC) 25.5mA/

51mA

–Individual 8-bits Dot Current (DC) setting

•PWM dimming up to audible-noise-free 23kHz

–Individual 8-bits PWM dimming resolution

–Linear or exponential dimming curves

•Autonomous animation engine control

•Instant blinking via STAT pin control

•1MHz (max.) I

2

C interface

•ESD: 4kV HBM, 1.5kV CDM

•Package

–1.6x2.1mm SOT583-8 with 0.5mm pitch

–1.36x0.8mm DSBGA-8 with 0.35mm pitch

•–40°C to 125°C operating temperature range

2 Applications

LED animation and indication for:

•Personal Electronics

–Virtual Reality (VR) Headset

–Gaming Controller and Peripherals

–Electronic and Robotic Toys

–Smart Speaker

–Wireless Speaker

–Solid State Drive (SSD)

–Electronic Smart Lock

–Headsets/Headphones and Earbuds

–GPS Personal Navigation Device

•WLAN/Wi-Fi Access Point

•Video Doorbell

•Video Conference System

3 Description

The LP5815 is a 3-channel RGB LED driver with

autonomous animation engine control and controllable

Instant Blinking feature. The device has ultra-low

operation current with 0.1μA (typical) in shutdown

mode, 0.1mA (typical) when enable device and 0.2mA

(typical) when illuminate LEDs.

Both analog dimming and PWM dimming methods are

adopted to achieve powerful dimming performance.

The output current of each LED can be adjusted

with 256 steps from 0.1mA to 25.5mA or 0.2mA to

51mA. The 8-bits PWM generator enables smooth

and audible-noise-free dimming control for LED

brightness.

The autonomous animation engine can significantly

reduce the real-time loading of controller. Each LED

can be configured through the related registers to

realize vivid and fancy lighting effects.

The Instant Blinking via STAT pin control feature can

provide automatic blinking on OUT0 channel without

I

2

C communication after powering up.

Package Information

PART NUMBERPACKAGE

(1)

PACKAGE SIZE (NOM)

(2)

LP5815DRLRSOT583 (8)1.6mm × 2.1mm

LP5815YCHRDSBGA (8)1.36mm × 0.8mm

(1)For more information, see Section 11.

(2)The package size (length x width) is a nominal value and

includes pins, where applicable.

2.5 V - 5.5 V

OUT0

OUT1

OUT2

GND

1 uF

VCC

SCL

SDA

STAT

MCU

VIO

4.7k



4.7k



VLED

LED0

LED1

LED2

VBAT/VBUS

Red LED

Green LED

Blue LED

GPIO

LP5815 Simplified Schematic

LP5815

SNVSCP2A – MARCH 2025 – REVISED AUGUST 2025

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Produktspecifikationer